From: Keith Packard <keithp@keithp.com>
Date: Thu, 10 Nov 2022 00:29:56 +0000 (-0800)
Subject: metro-m0: Add GPS support
X-Git-Tag: 1.9.13~1^2~26^2~19
X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=abd437a372932dcc1aafe939e65919a50c203af0

metro-m0: Add GPS support

Plug a ublox GPS module into D4(tx)/D3(rx)

Signed-off-by: Keith Packard <keithp@keithp.com>
---

diff --git a/src/metro-m0/ao_pins.h b/src/metro-m0/ao_pins.h
index 2d404cad..0f276c1f 100644
--- a/src/metro-m0/ao_pins.h
+++ b/src/metro-m0/ao_pins.h
@@ -118,4 +118,18 @@ struct ao_adc {
 
 #define AO_ADC_SQ6		SAMD21_ADC_INPUTCTRL_MUXPOS_TEMP
 
+/* GPS */
+#define HAS_GPS			1
+
+#define AO_SERIAL_SPEED_UBLOX	AO_SERIAL_SPEED_9600
+
+#define HAS_SERIAL_0		1
+#define USE_SERIAL_0_STDIN	0
+#define SERIAL_0_PA08_PA09	1
+
+#define ao_gps_getchar		ao_serial0_getchar
+#define ao_gps_putchar		ao_serial0_putchar
+#define ao_gps_set_speed	ao_serial0_set_speed
+#define ao_gps_fifo		(ao_samd21_usart0.rx_fifo)
+
 #endif /* _AO_PINS_H_ */
diff --git a/src/metro-m0/metro-m0.c b/src/metro-m0/metro-m0.c
index 65a0e05a..5fe7723b 100644
--- a/src/metro-m0/metro-m0.c
+++ b/src/metro-m0/metro-m0.c
@@ -67,6 +67,8 @@ int main(void)
 	ao_exti_init();
 	ao_spi_init();
 	ao_adc_init();
+	ao_serial_init();
+	ao_gps_init();
 	ao_beep_init();
 	ao_usb_init();
 	ao_storage_init();